Results 71 to 80 of about 160,803 (161)

Hypersonic Scramjet Inlet Development for Variable Mach Number Flows [PDF]

, 2023
Hypersonic propulsion has become an increasingly important research field over the past fifty years, and subsequent interest in propulsion systems utilizing supersonic combustion has emerged.
White, Zachary P
core  

Experimental Studies of Scramjet Inlet Restart in a Hypersonic Wind Tunnel

Scramjet engines hold great promise for hypersonic propulsion, yet a significant design and operational challenge is ensuring the scramjet can resume operation after being unstarted, once the unstarting conditions have been removed — this process is ...
Noller, Lachlan J.
core   +1 more source

Transitional and turbulent heat transfer of swept cylinder attachment line in hypersonic flow [PDF]

, 2006
A wide range of experimental results carried out in low enthalpy facilities is used to sustain simple correlations predicting heat transfer rates on an attachment line in hypersonic flow.
Cooper, Richard K., Sidorenko, A., Benard, Emmanuel, Cooper, Richard   +3 more
core   +1 more source

Ramjet Compression System for a Hypersonic Air Transportation Vehicle Combined Cycle Engine

Energies, 2018
This report assesses the performance characteristics of a ramjet compression system in the application of a hypersonic vehicle. The vehicle is required to be self-powered and perform a complete flight profile using a combination of turbojet, ramjet and ...
Sasha Veeran, Apostolos Pesyridis, Lionel Ganippa   +2 more
doaj   +1 more source

Designing Flight Experiments for Hypersonic Flow Physics [PDF]

, 2005
A major problem of concen for the success of physical-modelling resides in the availability of experimental data for model validation, particularly in the hot hypersonic regime.
Gülhan, A., Turner, J., Weihs, H., Eggers, Th., Longo, J.M.A.   +4 more
core  

Influence of the shock wave-turbulence interaction on the swirl distortion in hypersonic inlet

Advances in Aerodynamics
This study uses the Large Eddy Simulation (LES) technique to conduct an exhaustive analysis of the flow characteristics within the Rectangular-to-Elliptical shape Transition (REST) inlet under Mach 6 conditions.
Zhenlong Wu, Yiqing Li, Limei Lu, Xinyi Xu, Ranhui Liang   +4 more
doaj   +1 more source

Design of Reverse Bleed Slot for Curved Axisymmetric Inlet Based on Kantrowitz Criterion and Flow Field Characteristics

Aerospace
Conventional forward bleed slots reduce the hypersonic inlet starting Mach number but suffer from excessive flow leakage after restart. This paper proposes a novel reverse bleed slot design method for curved axisymmetric inlets of a solid-fuel scramjet ...
Yongzhou Li, Di Sun, Xinhui Tian, Yiqi Yuan, Xisheng Luo, Kunyuan Zhang   +5 more
doaj   +1 more source

Aerothermodynamics issues of the DLR hypersonic flight experiment SHEFEX-I [PDF]

, 2008
Here is presented an overview of the hypersonic experiment on sharp edge concepts, SHEFEX-I. The project, being performed under responsibility of the German Aerospace Center (DLR), is aimed to investigate the behavior and the possibilities of an improved
Eggers, Thino, Longo, Jose Maria, Barth, Tarik   +2 more
core  

A case study on the aerodynamic heating of a hypersonic vehicle [PDF]

, 2012
A Parabolised Navier-Stokes (PNS) flow solver is used to predict the aerodynamic heating on the surface of a hypersonic vehicle. This case study highlights some of the main heat flux sensitivies to various conditions for a full-scale vehicle and ...
MacManus, David G., Stollery, J. L., Chaplin, Ross, Mifsud, Michael, Estruch-Samper, David   +4 more
core   +2 more sources

Machine Learning-Based Backpressure Unstart Prediction and Warning Method for Combined Cycle Engine Hypersonic Inlet-Oriented Wide Speed Range

International Journal of Aerospace Engineering
Inlet unstart prediction and warning are strictly crucial to the operation of hypersonic engines, especially for combined cycle engines where implementation across a wide speed range poses significant challenges.
Ke Min, Tanbao Hong, Zejun Cai, Lianchen Yu, Chengxiang Zhu, Jianping Zeng   +5 more
doaj   +1 more source